Hadoop General Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Hadoop General Interview Questions

Questions Answers Views Company eMail

What happens if one hadoop client renames a file or a directory containing this file while another client is still writing into it?

343

Which directory does hadoop install to?

352

Why use hadoop?

306

What are the actions followed by hadoop?

323

What kind of hardware is best for hadoop?

295

Where are hadoop’s configuration files located and list them?

288

How jobtracker assign tasks to the tasktracker?

299

What are the functionalities of jobtracer?

298

What does rack awareness mean?

282

What the information segments utilized by hadoop are?

295

Clarify what a task tracker is in hadoop?

299

How ordering in hdfs is finished?

303

Clarify what is sequence file input format?

334

How job tracker schedules an assignment?

287

Clarify what jobtracker is in hadoop? What are the activities followed by hadoop?

318

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Un-Answered Questions { Hadoop General }

Can we change the file cached by distributed cache

295

What are the port numbers of task tracker?

325

What are the most common OutputFormat in Hadoop?

387

List of the some best tools that can be useful for data-analysis?

298

What is the best practice to deploy the secondary name node?

333

If datanodes increase, then do we need to upgrade namenode?

320

What are some typical functions of job tracker in hadoop?

310

Explain how Hadoop cluster hardware planning and provisioning is done?

352

Why do we need Hadoop Archives? How is it created?

329

What is the number of default partitioner in hadoop?

318

What is replication factor?

311

If DataNode increases, then do we need to upgrade NameNode in Hadoop?

313

How would you check whether your NameNode is working or not?

288

Explain what is a sequence file in hadoop?

330

Can you define inputsplit in hadoop?

333

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